Contractible shaft.



UNITED snrrns PATEXT OFFIQQ JOSEPH ANTOINE PAQUETTE, OI" HULL, QUEBEQ, CANADA.

1 CONTRACTIBLE SHAFT.

$pecification of Letters Patent.

Patented Dec. 3, 1907.

A licati fil d March 30. 1907; Serial No. 365,536.

To all whom it may concern:

Be it known that I, JOSEPH ANTOIN PAQ QUETTE, of 64 Lake street,city of Hull, Province of Quebec, Canada, have invented certain new and useful Improvements in 'Contractible Shafts,-of which the following is a specification.

jMy 'nvention relates to improvements in contractible shafts, and the objects of my invention are to provide an exceedingly cheap and simple form of shaft particularly adapt-..

- section and allowing it to move inwardly, as

hereinafter more fully set forth and de-' scribed in the accompanying specification and drawings.

s In drawings,

Fig. 3 shows a transverse sectional view'on the line 2-2 Fig; 1. Fig 4 shows an enlarged' perspective view on the lines 33 Fig. 1

.In drawings like figures of reference indi-- order to free the shaft.

cate corresponding arts in each figure,

"Referring-to the rawings, A isthe shaft,

which may be constructed of any desirable material and in any suitable shape. The

shaft has at one side thereof a longitudinal: recess a'cut therein, within which a movable section-B of the shaft is adapted to fit, the

depth of the recess being greater than that of'the section whereby the same may move inwardly, and a-space-may be provided for the means of operating the section.

The section is held from. excessive outward movement by means of a pluralit of pins 1) and c, which extend transversally t ereof, and

have their inner ends, slotted at d to receive pins f, which extend transversallythrough the shaft, recesses 9 being provided into which the said pins extend;

The movable section is moved by means of a plurality of wed es h, which are'se'cured to, or formed integra with a bar 0, which ex-- Figure 1 shows a longitudinal sectional View through the shaft. Fig. 2.

same to be readily pulled out.

tends longitudinally at the bottom of the recessa. This bar is secured at one end ,to a rod D, which extends through the end of the shaft and preferably is provided with&, round end i, for convenience in operating. Slots. J are provided in the rod B, through which the pinsb and c extend, whereby the rod may be operated without disturbing the ins. The

section'B isprovided' on its un er surface with a plurality of recesses K, having inclined faces 1, adapted toco-act with the wedges h on the bar C, to cause the section B to move outwardlywhenoperating rod D is pulled out from the shaft.

. n-operation therod D is pulled to it's outermost position causing section B to be moved outwardly, and the cross-section of .the, shaft is preferably such that inthis position the periphery of the shaft will beexactly cylindrical. The paper or other material is then rolled on the shaft. and when it is desirable to free the shaft, the rod D is pushed inwardly, permitting the section B to move inwardly, thus reducing the diameter of the shaft at one point and enabling the This shaft will be found of great use in paper mills, for when solid shafts are used to roll the paper on, they frequently bind and it becomes necessary to destroy the Whole roll of paperin It is evident, :however, that the application of the contractible shaft is not limited to paper rolls, :but could be used wherever the function of a reducible diameter could be used to any advantage.

While I have, therefore, described the device in great particularity of detail, in the accompanying specification, yet it will be readily understood that in carrying out the invention, changes may be made within the scope of the appended claims, vnthout dearting from the spirit of the invention. What I claim as my invention is In a contractible shaft, the combination with the shaft having a longitudinal slot atmg the rod from the end of the shaft, re-

cesses in the bottom of the slot in the'shaft below the apertures in the rod, outwardly movable sections located in the outer part of the slot in the shaft,

Signed at the city of Ottawa, in the Provextendlng through the apertures 1n the rod, ince of Ontario, this 16th day of March, 1907 shaft, and having slots in their extremities, mSEPH ANTOINE PAQUETTE' and pins extending transversely across the recesses in the shaft and through theslots in the said pi 11s, as and for the purpose specified.

Witnesses R. S. SMART, WM. A. WYMAN. 

